Tapered tooth clipper



Oct. 11, 1932. F, MA REAN 1,882,155

TAPERED' TOOTH CLIPPER Filed May 24, 1950 l N VEN TOR,

Patented Oct. 11, 1932 warren, star as Parent series MARRETT F. MA BEAN, OF KANSAS CITY, IVIISSOURI, ASSIGNOR F ONE HALF TO EIZIBERT' A. TAYLOR, OF KANSAS CITY, MISSOURI TAPERED TOOTH CLIPPER Application filed May 24,

This invention relates to hair clippers and presents as its primary object a point of invention which might be built into the hair clipping device as it is manufactured, or which maybe made a part thereof by'alteration or attachment after the clipper has been in use.

One'of the objects of the invention is'to provide a hair clipper especially constructed to form a feather edge at the hair line through the use of clippers only and without, the use of other instruments which prolong the operation. 1

It is well known in this art that during the process of cutting hair two sets of hair clippers, or two sets of blades of varying fineness must be used in connection with the final operation of. feather edging through the use of, barbers shears before the hair line issatisfactorily formed. It is therefore an object of this invention toprovide hair clippers or attachments therefor which will have the qualification: of. supporting the cutting blade of. the samein a position with respect. to the base of. the. hair along. the hair line which will cut. the same in varying lengths, such variation. being; gradual and progressive to preclude objectionable steps or ragged appearance= V I With the above major objections of this invention in view and bearing in mind the many modificationswhich might be followed in practicing thisinvention, the same will be described-by reference to the accompanying drawing wherein;

Figure 1 is a top plan view of a hair clipper having. a ledger plate made in accordance with this invention.

Fig. 2 is a fragmentary side elevation ofthe clipper shown in Fig. 1, i

Fig. 3 is a vertical cross section through the ledger and cutting plates of the hair clipper shown in Fig. 1, taken on line III-III of. said figure, and

. Fig.4 is an enlarged, fragmentary, side elevation of the nose portion of the clipper, viewing the opposite side of the clipper from the side illustrated in Fig. 2.

l/Vith particular reference to the form of 50 the invention shown in the accompanying 1930. Ser ial'No. 455;252.

drawing wherein like reference numerals. refer to similar parts-shown in several views,

4 indicates an ordinary hair clipper which has been diagrammatically shown for purposes of. illustrating the invention. Manifestly, the improvement contemplated by this invention might be applied to-any form. of; hair clipper. withequally eiiicienteifect. V

The length to which the hair is cut de-- pends upon the thicknessof the teeth 6 formed by the ledger plate S-WhlCll: is supported in a; stationary, conditionby the clipper 4. The lower edges of the series of teeth 6 indicated at 10 presentsthe; surface which; rides over the skin when the-clipper is inuse. This-surface 10 is disposed at an anglewith; respect to the opposite faces of tlie'teeth 6 upon which rides thelower face of the out.v ting late-l2 which is also provided without,- ward y projecting teeth 14. i. The angularity of surfacelO causes-teeth. 6to be thicker at their base than at their free ends and thesides of teeth 6 convergeasthelower edge is'ap proached. a

The ends of teeth lit and teeth-6 of the cut,- 7 ting and: ledger plates 12 andv 8 respectively, terminate in straight alinementand, as well known in the art,.rapid reciprocationonlthe part of plate 12 cut-sthe hair as itprojectsbetween the series of teeth formed on eachzrgo of the plates mentioned. l

Lower faces 10 of teethifiof ledger plate'8 angle upwardly toward the free-ends of the teeth from a common line which is'parallelv to the front edge of saidledger plate; Each 35. angle of the lower faces of'teeth: 10-is pros gressively greater asone sideo f ledger plate 8 is approached: from the opposite side thereof. In Fig.3 of the drawing the angle of inclination becomes greater as the right side. is approached from the left. In other words, the end tooth-.6 at the left of Fig.3 is the same thickness as ledger plate 8. Thistoothg 6 is shown in side elevationin Fig. 2 whilethe bottom of tooth'6 at the other end is indicated by the dotted line in this figure.

In forming a feather edge along the hair line, it is desired that the hair at the edge-of the line be shorter and that the length thereof progressively increase asthe distanceinwarchl 1y from the hair line is made greater. Since teeth ness,

6 are progressively graduated in thickit is readily seen that running the clippers l alongthe hair line with the thinnest teeth adjacent the edge of the hair line, the feather edge effect will be created in one operation; e

Ordinarily ledger platesm ay be replaced by plates embodying this invention and clippers may be provided withthe improvement durin the manufacture of the same. It has been fbund in practice that the timeof cut ting hair is appreciably decreased when using a clipper embodying this inventionand since the same might be incorporated in separately sold ledger plates, it is desired also to point out the advantage of the invention asiincorporated in a new article 'of' manufacture.

The preferred form of' the. invention has been described herein and the accompanying drawing clearly illustrat'esthe' principle in-' and a stationary ,ledger plate having a plu- "ralityof spaced teeth to coact'with the cutting plate teethf'and' adjacent sides. of each ,set of teeth being in frictional engagement when the cutting plate is reciprocated with respect to said ledger plate,'the-remote sides of eachset of teeth being inclined with respect to the adjacent sides, the said-inclina- .tion extending from each tooth point to the connection thereof with the respective plate,

' plate teeth progressively increasing in angw ;;larity as'on'e side ofsaidplate is approached the inclined sides of said te'ethmeeting at an acute angle at the points thereof,"said ledger from the other, the bases of all ofsaid ledger plate teeth'being on a common line equidistant from and parallel to the front edge of 7 plate including a plurality of spaced teeth,

'rality of spaced teeth-to coact withthe ,cut-" said plate. I I v y r r 7 1 =2. In a hair clipper, a reciprocable cutting and'a stationaryflledger platehaving apluting plate teeth, the" adjacent sides ofeacli set of teeth beingin frictional engagement when'the cutting plate is reciprocated with respect to'said ledger plate, the remote, sides of each set of teeth-being inclined with respect to the adj acentsides, the said inclin'a tioneXtending-from each tooth pointrto the connectronthereof with the respective plate the connections of all-teeth with the plate being on acommon line parallel to the ends Y 7 of said teeth, the inclinedflsides of; said teeth meeting atan acute angle'at the points there'- l formed on each f straight alinementf equidistant sideof the angle of inclination. v r v j Y In testimony whereof, Ihereuntoaflix my of, said ledger plate teeth progressively increasing in angularity from one side of said plate to the other, the points of all of said teeth of the clipper terminating in alinement equidistant from the common line of connection of teeth and respective plates, each ledger plate tooth having-its opposite sides converging as the lower edge is approached,

the angle of convergence of eachtcoth being.

different 'in'accordance with the tooth angulari'ty whereby a'lower edge of like width is of said ledger plate teeth.

3. As a new article of manufacture, a

Jle'dgerplate for hair clippers, having a series of equally spaced teeth terminating n from Said plate, the lower edge of each tooth being in--' clined rearwardly from the point thereofto its point of attachment with saidplatesaid" teeth joining saidplate on a common lineparallel to the ends I lower edges of said teeth meeting at an acute angle, each tooth also having the sides there-' thereof, the upper and j of converging asthe lower inclinededge is approached, the angle of convergence of each tooth being different in accordance with theangle of inclination of therespective tooth whereby to present a loweredge of like thick ness on each tooth; I V V 4; In a hair clipper, a movable cutting plate; a stationary ledger plate. associated l with said cutting plate; and a plurality; of

spaced apart teeth formedby saidzledger plate," the lower face of each tooth being angled upwardly from the bottom faceof said plate from acommon line, said linebe-i to the front edge of the saidledger plate, each angle of the lower faces ing parallel being progresslvely greater or'smaller from: one side of the ledger plate to the other,

a 5. In a hair clipper, a movable cutting.

plate; a stationary ledger plate associated plate, the lower angled upwardly face of each tooth-"f being of'each tooth of saidledger plate converging toward each other as the lowerjinclined face thereof is approached, the angle ofconvergenceof each tooth being-'difii'erent in accordancewiththefangle of inclination whereby to present aplu'r'ality of ledger plate teeth 112W- line being with said cutting plate, and a pluralityof E spaced apart teeth formed by said' 'le'dger from the bottom face-"of said plate from acommonline, said parallel to the front edge of thesa-id ledger each angle of the lowerfaces being', progressively greater or smaller fromone ledger plate to thelothe'r ;,the sides mg lower faces of like width but of dilfierent signature; 3 7 v 1;

' MAItRE TT F. MA ,REltNL V 

